earth-fault relay

E-船用词典 A to Z_文档下载_文档资料库 ... earth's 大地的 earth-fault relay 接地故障信号继电器 earth-free 不接地的 ...

earth... ... earth-sensing relay 接地敏感继电器 earth-fault relay 接地故障继电器 earth leakage relay 对地泄漏信号继电器 ...